Description
Http4s is a Scala interface for HTTP services. In versions from 1.0.0-M1 to before 1.0.0-M45 and before 0.23.31, http4s is vulnerable to HTTP Request Smuggling due to improper handling of HTTP trailer section. This vulnerability could enable attackers to bypass front-end servers security controls, launch targeted attacks against active users, and poison web caches. A pre-requisite for exploitation involves the web application being deployed behind a reverse-proxy that forwards trailer headers. This issue has been patched in versions 1.0.0-M45 and 0.23.31.
Problem types
CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Product status
>= 1.0.0-M1, < 1.0.0-M45
References
github.com/...http4s/security/advisories/GHSA-wcwh-7gfw-5wrr
github.com/...http4s/security/advisories/GHSA-wcwh-7gfw-5wrr
github.com/...ommit/dd518f7c967e5165813b8d4a48a82b8fab852d41
